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PCI-1723 User Manual 26

3.3.2 I/O Connector Signal Descriptions

3.3.3 Analog Output Connection

The PCI-1723 provides eight D/A output channels, Vout_0 ~ Vout_7 and

Iout_0 ~ Iout_7. Users may use the PCI-1723 internally provided preci-

sion -5V (-10 V) reference to generate 0 to +5 V (+10 V) D/A output

range.

The maximum driving ability for each channel is 2 mA when voltage

mode is chosen. Please note that external resistor load can not be lower

than | Vout | / 2 mA, or the card could be damaged.

Figure 3-3 shows how to make analog connections on the PCI-1723.

Table 3.1: I/O Connector Signal Descriptions

Signal

Name

Refer-

ence

Direc-

tion

Description

Vout<0..3> AGND Output Voltage Output, Channels 0 through 3.

Iout<0..3> AGND Output Current Output, Channels 0 through 3.

AGND - - Analog Ground. The two ground refer-

ences (AGND and DGND) are con-

nected together on the PCI-1723 card.

DI0<0..15> DGND - Digital Input / Output signals. These

pins are digital input / Output channel

0 to 15.

DGND - - Digital Ground. The two ground refer-

ences (AGND and DGND) are con-

nected together on the PCI-1723 card.

+12V DGND Output +12 VDC Source (from PCI bus

directly with FUSE protection).

+5V DGND Output +5 VDC Source (from PCI bus directly

with FUSE protection).

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